From 87199ea66b171708736e85989bf9b0af89a805c1 Mon Sep 17 00:00:00 2001
From: Ruslan Baratov <ruslan_baratov@yahoo.com>
Date: Sun, 2 Apr 2017 21:41:33 +0800
Subject: CheckIPOSupported: Add Fortran support

---
 Modules/CheckIPOSupported.cmake                               | 9 +++------
 Modules/CheckIPOSupported/CMakeLists-Fortran.txt.in           | 8 ++++++++
 Modules/CheckIPOSupported/foo.f                               | 2 ++
 Modules/CheckIPOSupported/main.f                              | 3 +++
 Tests/RunCMake/CheckIPOSupported/RunCMakeTest.cmake           | 1 -
 Tests/RunCMake/CheckIPOSupported/user-lang-fortran-result.txt | 1 -
 Tests/RunCMake/CheckIPOSupported/user-lang-fortran-stderr.txt | 6 ------
 Tests/RunCMake/CheckIPOSupported/user-lang-fortran.cmake      | 1 -
 8 files changed, 16 insertions(+), 15 deletions(-)
 create mode 100644 Modules/CheckIPOSupported/CMakeLists-Fortran.txt.in
 create mode 100644 Modules/CheckIPOSupported/foo.f
 create mode 100644 Modules/CheckIPOSupported/main.f
 delete mode 100644 Tests/RunCMake/CheckIPOSupported/user-lang-fortran-result.txt
 delete mode 100644 Tests/RunCMake/CheckIPOSupported/user-lang-fortran-stderr.txt
 delete mode 100644 Tests/RunCMake/CheckIPOSupported/user-lang-fortran.cmake

diff --git a/Modules/CheckIPOSupported.cmake b/Modules/CheckIPOSupported.cmake
index f0e476a..712a95e 100644
--- a/Modules/CheckIPOSupported.cmake
+++ b/Modules/CheckIPOSupported.cmake
@@ -93,11 +93,14 @@ macro(_ipo_run_language_check language)
 
   string(COMPARE EQUAL "${language}" "C" is_c)
   string(COMPARE EQUAL "${language}" "CXX" is_cxx)
+  string(COMPARE EQUAL "${language}" "Fortran" is_fortran)
 
   if(is_c)
     set(copy_sources foo.c main.c)
   elseif(is_cxx)
     set(copy_sources foo.cpp main.cpp)
+  elseif(is_fortran)
+    set(copy_sources foo.f main.f)
   else()
     message(FATAL_ERROR "Language not supported")
   endif()
@@ -204,12 +207,6 @@ function(check_ipo_supported)
     endif()
   endif()
 
-  list(FIND languages "Fortran" result)
-  if(NOT result EQUAL -1)
-    _ipo_not_supported("Fortran is not supported")
-    return()
-  endif()
-
   if(NOT _CMAKE_IPO_SUPPORTED_BY_CMAKE)
     _ipo_not_supported("CMake doesn't support IPO for current compiler")
     return()
diff --git a/Modules/CheckIPOSupported/CMakeLists-Fortran.txt.in b/Modules/CheckIPOSupported/CMakeLists-Fortran.txt.in
new file mode 100644
index 0000000..9fab077
--- /dev/null
+++ b/Modules/CheckIPOSupported/CMakeLists-Fortran.txt.in
@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION "@CMAKE_VERSION@")
+project("@TRY_COMPILE_PROJECT_NAME@" LANGUAGES Fortran)
+
+cmake_policy(SET CMP0069 NEW)
+
+add_library(foo foo.f)
+add_executable(boo main.f)
+target_link_libraries(boo PUBLIC foo)
diff --git a/Modules/CheckIPOSupported/foo.f b/Modules/CheckIPOSupported/foo.f
new file mode 100644
index 0000000..945d2d5
--- /dev/null
+++ b/Modules/CheckIPOSupported/foo.f
@@ -0,0 +1,2 @@
+	SUBROUTINE FOO
+	END
diff --git a/Modules/CheckIPOSupported/main.f b/Modules/CheckIPOSupported/main.f
new file mode 100644
index 0000000..9d1de9f
--- /dev/null
+++ b/Modules/CheckIPOSupported/main.f
@@ -0,0 +1,3 @@
+	PROGRAM BOO
+	CALL FOO()
+	END
diff --git a/Tests/RunCMake/CheckIPOSupported/RunCMakeTest.cmake b/Tests/RunCMake/CheckIPOSupported/RunCMakeTest.cmake
index 812f79b..588a75d 100644
--- a/Tests/RunCMake/CheckIPOSupported/RunCMakeTest.cmake
+++ b/Tests/RunCMake/CheckIPOSupported/RunCMakeTest.cmake
@@ -2,7 +2,6 @@ include(RunCMake)
 
 run_cmake(unparsed-arguments)
 run_cmake(user-lang-unknown)
-run_cmake(user-lang-fortran)
 run_cmake(default-lang-none)
 run_cmake(not-supported-by-cmake)
 run_cmake(not-supported-by-compiler)
diff --git a/Tests/RunCMake/CheckIPOSupported/user-lang-fortran-result.txt b/Tests/RunCMake/CheckIPOSupported/user-lang-fortran-result.txt
deleted file mode 100644
index d00491f..0000000
--- a/Tests/RunCMake/CheckIPOSupported/user-lang-fortran-result.txt
+++ /dev/null
@@ -1 +0,0 @@
-1
diff --git a/Tests/RunCMake/CheckIPOSupported/user-lang-fortran-stderr.txt b/Tests/RunCMake/CheckIPOSupported/user-lang-fortran-stderr.txt
deleted file mode 100644
index 2cb595d..0000000
--- a/Tests/RunCMake/CheckIPOSupported/user-lang-fortran-stderr.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-^CMake Error at .*/Modules/CheckIPOSupported\.cmake:[0-9]+ \(message\):
-  IPO is not supported \(Fortran is not supported\)\.
-Call Stack \(most recent call first\):
-  .*/Modules/CheckIPOSupported\.cmake:[0-9]+ \(_ipo_not_supported\)
-  user-lang-fortran\.cmake:[0-9]+ \(check_ipo_supported\)
-  CMakeLists\.txt:[0-9]+ \(include\)$
diff --git a/Tests/RunCMake/CheckIPOSupported/user-lang-fortran.cmake b/Tests/RunCMake/CheckIPOSupported/user-lang-fortran.cmake
deleted file mode 100644
index 275dbd9..0000000
--- a/Tests/RunCMake/CheckIPOSupported/user-lang-fortran.cmake
+++ /dev/null
@@ -1 +0,0 @@
-check_ipo_supported(LANGUAGES "Fortran")
-- 
cgit v0.12